The DSA-1004 is a dual 1×4 DS3 distribution amplifier (DA). It is used in i-MOD platform. The module provides dual-channel DA with 4 DS3 outputs for 1 DS3 input on each channel. The first output supports power-off protection. Thus signal can be output continuously when module is removed or power is off.

The DSA-1004 can be controlled locally by means of an intuitive card-edge interface or remotely using i-MOD platform control software IM-MASTER.